CH. 3 Atoms and Bonding

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What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

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How many valence electrons are shared in a single bond?

Back

2

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What is the electron configuration of Lithium (Li)?

Back

Lithium has 1 valence electron.

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Front

Why are metals good conductors of electricity?

Back

A negative charge can easily push the sea of electrons in one direction, making a current.

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What is silicon dioxide?

Back

Silicon dioxide is a chemical compound with the formula SiO2.

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How does oxygen become an oxide ion?

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Oxygen becomes an oxide ion by gaining 2 electrons.

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What is an ionic bond?

Back

An ionic bond is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions.

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What is a covalent bond?

Back

A covalent bond is a type of chemical bond where two atoms share one or more pairs of electrons.

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What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

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Front

What is the difference between a metal and a nonmetal?

Back

Metals are typically shiny, malleable, and good conductors of heat and electricity, while nonmetals are usually dull, brittle, and poor conductors.